| 2026-09-18 | Davis Cup Qualifiers 2nd Rd | RR | Nikola Mektic / Mate Pavic (with Tim Puetz) | 7-5 6-2 | won |
| 2026-08-30 | US Open | F | Christian Harrison / Neal Skupski (with Tim Puetz) | 4-6 6-7 | lost |
| 2026-08-30 | US Open | R32 | Jean-Julien Rojer / Theodore Winegar (with Tim Puetz) | 7-6 5-7 6-2 | won |
| 2026-08-30 | US Open | R64 | Jaime Faria / Adam Walton (with Tim Puetz) | 7-6 6-7 6-4 | won |
| 2026-08-30 | US Open | SF | Rajeev Ram / Joe Salisbury (with Tim Puetz) | 6-3 6-4 | won |
| 2026-08-30 | US Open | QF | Marcelo Arevalo / Mate Pavic (with Tim Puetz) | 6-7 6-4 7-6 | won |
| 2026-08-30 | US Open | R16 | Julian Cash / Lloyd Glasspool (with Tim Puetz) | 7-6 7-6 | won |
| 2026-08-13 | Cincinnati Open | R32 | Jakob Schnaitter / Mark Wallner (with Tim Puetz) | 6-7 6-4 6-10 | lost |
| 2026-06-29 | Wimbledon | SF | Marcelo Arevalo / Mate Pavic (with Tim Puetz) | 6-7 2-6 | lost |
| 2026-06-29 | Wimbledon | QF | Sadio Doumbia / Fabien Reboul (with Tim Puetz) | 7-5 7-6 | won |
| 2026-06-29 | Wimbledon | R16 | Francisco Cabral / Lucas Miedler (with Tim Puetz) | 7-6 7-6 | won |
| 2026-06-29 | Wimbledon | R32 | Roman Andres Burruchaga / Thiago Agustin Tirante (with Tim Puetz) | 5-7 7-6 6-3 | won |
| 2026-06-29 | Wimbledon | R64 | Gonzalo Escobar / Reese Stalder (with Tim Puetz) | 6-3 3-6 7-6 | won |
| 2026-06-15 | Terra Wortmann Open | R16 | Robert Galloway / John Peers (with Tim Puetz) | 6-7 6-7 | lost |
| 2026-05-17 | Bitpanda Hamburg Open | F | Sadio Doumbia / Fabien Reboul (with Tim Puetz) | 6-3 4-6 10-8 | won |
| 2026-05-17 | Bitpanda Hamburg Open | SF | Guido Andreozzi / Manuel Guinard (with Tim Puetz) | | won |
| 2026-05-17 | Bitpanda Hamburg Open | QF | Alexander Erler / Lucas Miedler (with Tim Puetz) | 6-3 7-5 | won |
| 2026-05-17 | Bitpanda Hamburg Open | R16 | Hugo Nys / Edouard Roger-Vasselin (with Tim Puetz) | 6-4 7-6 | won |
| 2026-05-06 | Internazionali BNL d'Italia | R16 | Alexander Erler / Lucas Miedler (with Tim Puetz) | 6-7 6-7 | lost |
| 2026-05-06 | Internazionali BNL d'Italia | R32 | Flavio Cobolli / Lorenzo Sonego (with Tim Puetz) | 6-3 6-2 | won |
| 2026-04-22 | Mutua Madrid Open | R32 | Tallon Griekspoor / Brandon Nakashima (with Tim Puetz) | 6-7 6-7 | lost |
| 2026-04-13 | BMW Open by Bitpanda | R16 | Yuki Bhambri / Michael Venus (with Tim Puetz) | 5-7 6-7 | lost |
| 2026-04-05 | Rolex Monte-Carlo Masters | F | Marcelo Arevalo / Mate Pavic (with Tim Puetz) | 4-6 6-2 10-8 | won |
| 2026-04-05 | Rolex Monte-Carlo Masters | SF | Hugo Nys / Edouard Roger-Vasselin (with Tim Puetz) | 7-6 4-6 10-8 | won |
| 2026-04-05 | Rolex Monte-Carlo Masters | QF | Julian Cash / Lloyd Glasspool (with Tim Puetz) | 6-4 7-6 | won |
| 2026-04-05 | Rolex Monte-Carlo Masters | R16 | Andre Goransson / Evan King (with Tim Puetz) | 6-4 7-5 | won |
| 2026-04-05 | Rolex Monte-Carlo Masters | R32 | Robert Cash / JJ Tracy (with Tim Puetz) | 6-3 7-5 | won |
| 2026-03-18 | Miami Open presented by Itau | R16 | Hugo Nys / Edouard Roger-Vasselin (with Neil Oberleitner) | 2-6 4-6 | lost |
| 2026-03-18 | Miami Open presented by Itau | R32 | Benjamin Kittay / Ryan Seggerman (with Neil Oberleitner) | 6-4 6-4 | won |
| 2026-03-04 | BNP Paribas Open | R16 | Constantin Frantzen / Robin Haase (with Tim Puetz) | 4-6 6-7 | lost |